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【单选题】
小明做题一向粗心，下面计算，他只做对了一题，此题是（ ）A.
a 3 +a 3 =a 6
B.
a 2 ?a 5 =a 7
C.
（2a 3 ） 2 =2a 6
D.
（a-b） 2 =a 2 -ab+b 2
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【单选题】A.Your first job after college graduation.B.Your abilities matching the new job.#
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in, /
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at , a
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to , a
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A.
The cost of tuition and books to attend the graduate program.
B.
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C.
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D.
The value of insurance coverage and other employee benefits you would have received if you retained your job at the bank.
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marine surveyors
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MSA officials
D.
All of the above
【单选题】Suppose after graduating from college you get a job working at a bank earning $30,000 per year. After two years of working at the bank earning the same salary, you have an opportunity to enroll in a ...
A.
the cost of tuition and books to attend the graduate program
B.
the $30,000 salary that you could have earned if you retained your job at the bank
C.
the $45,000 salary that you will be able to earn after having completed your graduate program
D.
the value of insurance coverage and other employee benefits you would have received if you retained your job at the bank
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